May i know about lustra (hydroquinone) ?

Lustra (hydroquinone): Lustra contains 4% hydroquinone, glycolic acid and an antioxidant complex. Used to treat hyperpigmentation of the skin.

Bleaching agent: This is more commonly known as hydroquinone and is available over the counter in2% formulations but as a prescription in 4-7% strengths. It is generally used in combo with Retin-A and topicsl steroids and kojic acid. It is a skin irritant and sunblock must be used while undergoing therapy. There are some concerns with its potential increase risk of skin cancer which has limited its use and availab.